Mechanical movement.



PATENTED JULY 30, 1907.

3. D. A.'JOHNSON.

MECHANICAL MOVEMENT.

APPLICATION FILED 832128. 19064 2 SHEETS-SHEET l.

110i tn woes No. 861,658. PATENTED JULY 30, 1907. J. D. A. JOHNSON.

MECHANICAL MOVEMENT, APPLICATION FILED 8EPT.28.1908.

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JOHN D. A. JOHNSON, OF OMAHA, NEBRASKA.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed September 28, 1906. Serial No. 336,611.

To all whom it may concern:

Be it known that I, JouN D. A. JoHNsoN, a citizen of the United States,residing at Omaha, in the cou-nty of Douglas and State of Nebraska, haveinvented certain new and useful Improvements in Mechanical Movements, ofwhich the following is a specification.

This invention relates to improvements in mechan ical movements of theclass producing a reciprocating rotary movement of a single shaft.

The primary object of the invention is to present a movement of thisclass, of few parts, which will be of simple construction, but'effcctivc used in connection with washing machines.

The invention has reference to the employment of a central verticalshaft adapted to have a reciprocating. rotary motion from the transversemovement of a rackbar, the latter having sprocket-chain connection tocause rotation of a balance wheel found useful.

The invention. also includes means for operation by either machinery orhand-power, and has certain features of novelty and utility which willbe more fully described hereinafter.

The immediate result to be attained is the rotation of the dasher orstirrer within the tub, in one direction and then in a reversedirection, from a forward and backward movement of the handdever.

In the accompanying drawings which represent the invention, Figure l isa perspective View of a washing machine the invention being shownmounted thereon in operative position, the figure having a broken awaypart to disclose the interior. Fig. 2 is a detail relating to Fig. 1,being a broken away View of the horizontal shaft and frame, introducedto show preferred construction for shaft bearings, the view lookingcentrally to the hand lever from the rear of the machine. Fig. 3 is adetail in section relating to Fig. 2. Fig. 4 is a plan view partly insection, showing formation of head of rack-bar and connecting meansthereof with sprocketchain. Fig. 5 is a plan view of the inventionintroduced to show location of horizontal shafts.

Referring now to the figures of ,the drawing, the numeral 1 represents awashing machine having a tub 2, for holding water and clothes to bewashed, suitably sustained upon legs 3, the latter having cross-pieces 4passed and secured near the lower ends of the legs. The tub has a coverconsisting of the stationary part 5 and connected to the latter, as byhinges, is the swinging part 6; the swinging part 6 of the cover hassecured upon its under side a segmental leaf 7 which is a com- Thisplate extends from the center of the cover horizontally to the edge, andhas the angularly formed arm 10 extending below the plane of the cover,terminating in the horizontal projection 11 upon the end ofwhich, at 12,is pivotally mounted the lever 13. Vertically seated upon the head 14 ofplate 8 is the pinion l4 having a vertically disposed shaft 15 rigidlysecured thereon, and extended downward traversing head 14 and passingwithin the tub. Slidably mounted upon shaft 15 is disk 16, having prongs17 rigidly secured upon its under side. Slots 18 are formed transverselythrough the disk which are adapted to ride upon fins v19,

swing independent of shaft 15.

Upon the rear of cover 6 and near hinges 20, upon brackets 21 and 22,,as bearings, is mounted the horizontal shaft 23; and upon the outer endof shaft 23 is mounted the balance-wheel 24shaft 23 extends in adirection transverse to plate 8 and is extended across the end of thecover, and upon its inner end is mounted the sprocket-wheel 25.

' Upon brackets 26 and 27 as bearings, and disposed somewhat nearer thecenter of cover 6, and parallel with shaft 23, is shaft 26; and upon theinner end of shaft 26 is mountedthe sprocket-wheel 27. The upper end ,oflever 13 is provided with socket 28 within which a suitable handle 29 isremovably seated. 1 provide a rack bar 30 having teeth 31 formed on side32 thereof, the side 34 (Fig. 4) being smooth. The'outer end of therack-bar is pivotally mounted at 34 upon lever 13 and passes centrallyof the cover tocngage the teeth of pinion 14, being held to thisengagement by means of the vertically disposed roller 35- (Figs. 45) andthe inner end of the rack-bar is provided with the head 36 having thetransverse projection 37.

As thus described wheels 25 and 27 are vertically disposed and occupythe same plane, said plane being parallel with and closely adjacent tothe plane occupied by the rack-bar, this being an arrangement of partsextendingacross the central part of the cover. Upon the series of teeth38 of wheels 25 and 27 is seated the sprocket chain 39, these teethhaving well known bearings between the links 40 (Fig. 4) of 'the chain.Oneof the pivots of the chain, as pivot 41, (Fig. 4) formed of a lengthsufficient to traverse the head 36 and angular projection 37 of therack-bar and is employed, whereby the rack-bar is pivotally secured tochain 39; and in operation, when lever 13 is moved forward .and thenbackward in a direction toward or from the center of the cover, teeth 31of the rack-bar engage the teeth of pinion 14 and causes shaft 15 to berotated first in one direction and then in a reverse direction, as isevident; and the rack-bar, which is attached at its inner end 42 (Fig.5), will cause said chain to have a movement in a manner to rotate shaft23, thereby causing rotation of the balance wheel 24.

,which prevent said disk from having a horizontal The inner end 42 ofthe rack-bar, during the lengthwise movement of the bar will have anupward. and

downward swing, and therefore pinion 14 has a sufli-.

cient length so that its teeth will have a constant ongagernent with theteeth of the rack-bar; roller 35, it

will-be remembered has a contact with the smooth edge 34, during themovement of the bar, thereby preserving this contact.

Teeth 31, have curved upper(Fig. 4) and lower ends so that they may havea smooth engagement with the teeth of pinion 14. During operation, chain39, rides uponteeth 38 of wheel 25 and 27 in a smooth manner,

and shaftv 26 is employed for the single purpose of sustaining wheel 27in an operative position.

It will be noted that balance "wheel 24 is useful for furnishingmomentum for carrying themovement of prongs 17, when the latter engagethe clothing. This momentum is also depended upon to prevent any dolayedmovement of the end 42 of the rack bar when paming the-dead-center ofwheels 25 and 27. A band indicated at 43 may be used upon wheel 24, suchband to be actuated from any suitable source of power,; and shaft 15,thereby rotated, this being a substitute for hand power.

During the movement of head 36 of the rack-bar, it passes closelyadjacent to wheels 25 and 27 the angular projection 37 however, causesthe rack-bar to be positioned at all times sufficiently adjacent so thatthe rack bar does not come in contact with the wheels.

' It is an advantage as is evident to employ balls as at 44 for shafts23 and. 26, and this preferred construction is shown by Fig. 3.

I have described the use of this movement in connection with washingmachines, but this movement would be of utility for churns, or othermachines of. that class, and therefore I do not wish to be understood aslimiting its use.

Having given a full description, what I. claim as my invention is ;p

1. In combination, a mechanical movement as described said sprocketchain, and means to cause a movement of the rack-bar.

2. In combination, a mechanical movement as described, comprising arack-bar, an idler pinion; a vertical shaft a pinion rigidly securedupon its upper end; a horizontal shaft disposed transversely with,reference to the rack-bar and a balance wheel mounted upon its outer endand a pinion upon its inner end; a flexible member connecting the idlerpinion and the pinion'upo'n the inner end of the horizontal shaft; saidrack-bar being mounted upon suitable hearings in a manner toengage thepiuion'upon the vertical shaft and having its inner end secured uponsaid flexible member and means to cause a movement of said rack-bar. 7

3; In combination, a. mechanical movement, comprising a rackbar avertical shaft a pinion rlgidly secured upon its upper end; a horizontalshaft disposed transversely with reference to the rack-bar and a balancewheel mounted upon'its outer end and a pinion upon its inner end; saidrack-bar being mountedupon suitable hearings in a manner to engage thepinion upomthe vertical shaft; 9. connection between the pinion of thehorizontal shaft and the rack-bar for causing a rotary movement of thepinion of said horizontal shaft from an endwise movement ofthe"rack-liar; and means to cause an endwise movement of said rack-bar.

In testimony whereof he has aiiixed his signature in presence of twowitnesses. mm DQA. JOHNSON.

Witnesses:

R. R. WOLFE. R. G. WOLFE

